F-responses in syringomyelia |
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| Authors: | S Peioglou-Harmoussi P R Fawcett D Howel D D Barwick |
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| Affiliation: | 1. Department of Clinical Neurophysiology, Regional Neurological Centre, Newcastle General Hospital, Newcastle upon Tyne U.K.;2. Department of Medical Statistics, University of Newcastle upon Tyne, Newcastle upon Tyne U.K.;1. Department of Neurosurgery, The First Affiliated Hospital of Bengbu Medical College, Bengbu, China;2. Shandong University of Traditional Chinese Medicine, Jinan, China;1. Department of Physical Medicine and Rehabilitation, Soonchunhyang University Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon, Republic of Korea;2. Department of Rehabilitation Medicine, Hangang Sacred Heart Hospital, College of Medicine, Hallym University, Seoul, Republic of Korea;3. Department of plastic and Reconstructive Surgery, Hangang Sacred Heart Hospital, Hallym University Medical Center, Seoul, Republic of Korea;1. Department of Physical Education and Sport Sciences, Faculty of Educational Science and Psychology, University of Mohaghegh Ardabili, Ardabil, Iran;2. Department of Sport Biomechanics, Faculty of Humanities, Islamic Azad University, Hamedan Branch, Hamedan, Iran;3. School of Human Kinetics, University of Ottawa, Ottawa, Ontario, Canada;1. Department of Neurosurgery, National Institute of Mental Health and Neurosciences, Bangalore, India;2. Department of Neurosurgery, Mycure Hospitals, Maharani Peta, Visakhapatnam, Andhra Pradesh, India;1. Department of Physiology, Albert Szent-Györgyi Medical School, University of Szeged, Hungary;2. Department of Pediatrics and Pediatric Health Centre, Albert Szent-Györgyi Health Centre, University of Szeged, Hungary;3. Department of Neurology, Albert Szent-Györgyi Health Centre, University of Szeged, Hungary;4. Department of Physiotherapy, Faculty of Health Sciences and Social Studies, University of Szeged, Hungary;1. Istanbul University, Istanbul Faculty of Medicine, Department of Neurology, Istanbul, Turkey;2. Demiroglu Bilim University, Faculty of Medicine, Department of Pharmacology, Istanbul, Turkey |
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| Abstract: | ![]()
Motor and sensory nerve conduction and various F-response parameters have been examined in the median and ulnar nerves bilaterally in 22 patients with syringomyelia. Excluding those nerves with isolated peripheral lesions, motor and sensory conduction was normal in the distal nerve segments, except for one subject in whom severe wasting of the muscles was associated with slowed motor velocities. Minimum and/or maximum F-response latencies were increased in one or more nerves in 16 of the 22 cases, which was attributed to disturbed function of anterior horn cells and the intraspinal segment of the motor fibres, or mild subclinical nerve trauma. There was a tendency for F-response amplitude and duration to be increased, probably reflecting the combined effects of spasticity and enlargement of motor units due to reinnervation. |
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